| 摘要 |
An object-tracking apparatus ( 1; 11 ) includes, for observing an object area in an image and accurately track a tracking target, an image acquiring unit ( 2 c) that acquires image data; an area detector ( 2 d) that detects the object area from the image; a parameter calculator ( 2 e) that calculates an area parameter which indicates a property of the object image; an area identifying unit ( 2 f) that provides the object area at a processing target time point with an identifier which shows a correspondence between the object area at the processing target time point and the object area at an identification time point; a history generator ( 4 a) that associates the identifier with the area parameter to generate property information, and associates the generated property information of respective time points with time series to generate history information; a consistency determining unit ( 4 b) that determines a consistency in the history information from a determination time point to the processing target time point; and a history correcting unit ( 4 c) that corrects the history information when the consistency determining unit ( 4 b) determines no consistency.
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